Items37The creator’s order
  1. 1Superb lyrebirdSuperb lyrebirdA superb lyrebird can copy calls from other birds and weave them into its own performance. A captive bird named Chook also picked up mechanical sounds around his enclosure. His recording is a reminder that a noise like a tool can be part of a bird’s repertoire.0
  2. 2KoalaKoalaA koala’s bellow starts with a labored intake of air and drops into a low, rattling growl. Males can go surprisingly low thanks to an extra pair of vocal folds above the larynx. The bellow is especially associated with the breeding season.0
  3. 3Porichthys notatusPorichthys notatusA male plainfin midshipman can keep up a low, steady hum from a nest under a rock. Fast contractions of muscles against the swim bladder produce the sound, which helps attract females. A chorus can sound like an electrical hum that refuses to turn off.0
  4. 4KākāpōKākāpōA male kākāpō calls from a shallow bowl in the ground during the breeding season. He inflates an air sac in his chest to send out a series of low, resonant booms. His sharper courtship call, the ching, gives the same large, flightless parrot a very different sound.0
  5. 5American bitternAmerican bitternThe male American bittern makes a deep, gulping rhythm that sounds like an old water pump. The low notes carry across a marsh, where the bird can be hard to see against the reeds. Listen for the little intake of air between the louder beats.0
  6. 6White bellbirdWhite bellbirdA male white bellbird can deliver a clear, hard-edged call that rings like metal. In the louder of its two main songs, the first note can give way to a much more forceful second note. A male can turn to direct that second note at a nearby female.0
  7. 7Club-winged manakinClub-winged manakinThis little manakin can sing with its wings. A ridged feather and a neighboring feather interact as the male rapidly moves his wings during courtship. The result is a high buzz with a clear pitch, like a tiny stringed instrument.0
  8. 8Laughing kookaburraLaughing kookaburraA laughing kookaburra can start with a low chuckle and build to loud cackles. Other kookaburras can join in as they advertise their territory. The chorus can sound uncannily like several people laughing together.0
  9. 9Common loonCommon loonA common loon’s wail cuts over open water, rising and then trailing into a lower note. Loons use it to keep in touch when they’re apart. The quicker, wavering tremolo is a different call, heard when a loon is alarmed or in flight.0
  10. 10Wilson's snipeWilson's snipeThe pulsing sound from a diving Wilson’s snipe is called winnowing. Air makes its outer tail feathers vibrate as the bird flies through a courtship display. The sound is a good reason to look up over a marsh even when the calling birds seem to be at ground level.0